Althon manufacture precast concrete end walls that we can supply factory fitted with a range of HDPE penstock valves. These can also be supplied fitted with flap valves, duckbill valves and other flow control devices. We are also able to prove bespoke precast concrete end wall and wingwall options where our standard units are not suitable. 

If you require any assistance or more information please contact us by phone on 01603 488700 or by email